CN109759562B - Low-pressure casting production system for high-performance aluminum alloy castings - Google Patents
Low-pressure casting production system for high-performance aluminum alloy castings Download PDFInfo
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- CN109759562B CN109759562B CN201910226890.0A CN201910226890A CN109759562B CN 109759562 B CN109759562 B CN 109759562B CN 201910226890 A CN201910226890 A CN 201910226890A CN 109759562 B CN109759562 B CN 109759562B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The low-pressure casting production system for the high-performance aluminum alloy castings comprises a low-pressure casting machine, a furnace changing trolley, a heat preservation furnace and a furnace changing station, wherein the furnace changing trolley walks along a trolley walking track, at least two low-pressure casting machines are arranged at equal intervals on one side of the trolley walking track, a truss is fixed on the ground on one side of the trolley walking track, and the heat preservation furnace crane moves along the truss; at least two heat preservation furnaces are fixed on the ground below the truss, and a furnace changing station is fixed on the ground at the left side of the heat preservation furnaces; the lifting device has the advantages of lighter structure, more convenient installation and disassembly and stable lifting operation. The screw rod and the nut on the worm wheel seat are easy to be installed together and easy to be disassembled. The automatic low-pressure casting machine can reduce the labor intensity of workers and realize automatic low-pressure casting production.
Description
Technical field:
the invention relates to the technical field of casting machines, in particular to a low-pressure casting machine using a holding furnace to replace a low-pressure holding furnace.
The background technology is as follows:
low pressure casting has many casting advantages such as manually controllable process parameters, high metal utilization rate, high production efficiency, high mechanical properties of castings and the like, so that the low pressure casting machine has very wide application in the production of aluminum alloy castings. The heat preservation stove of traditional low pressure casting machine mostly uses the form of knoing, and aluminium liquid quality is relatively poor, and supplementary aluminium liquid adopts the subcontracting mostly, carries as power by fork truck or aerocar, and production mode is too thick and crazy, and production environment is too abominable. In recent years, because the crucible furnace changing mode is adopted for aluminum liquid supplementation, the method has the advantages of high aluminum liquid quality, good production environment, convenient and safe operation and the like, and gradually replaces the traditional process, thereby becoming the main stream of low-pressure casting. The crucible heat-preserving furnace with low pressure casting requirement has the functions of lifting and translation, and the furnace-changing low pressure casting machine appearing on the market mainly has the defects of heavy structure, inconvenient installation and disassembly of a heat-preserving furnace lifting mechanism, unstable lifting and the like. Meanwhile, during low-pressure casting, the transfer of the holding furnace is controlled and completed by manpower, so that the labor intensity is high.
The invention comprises the following steps:
the invention aims to overcome the defects of the prior art and provide a low-pressure casting production system for high-performance aluminum alloy castings, which has the advantages of lighter structure, convenience in installation and disassembly and stable lifting operation.
The technical solution of the invention is as follows:
the low-pressure casting production system for the high-performance aluminum alloy castings comprises a low-pressure casting machine, a furnace changing trolley, a heat preservation furnace and a furnace changing station, wherein the furnace changing trolley walks along a trolley walking track, at least two low-pressure casting machines are arranged at equal intervals on one side of the trolley walking track, a truss is fixed on the ground on one side of the trolley walking track, and the heat preservation furnace crane moves along the truss; at least two heat preservation furnaces are fixed on the ground below the truss, and a furnace changing station is fixed on the ground at the left side of the heat preservation furnaces;
the structure of the low-pressure casting machine is as follows: the two movable templates drive the main oil cylinders to be fixed on the top plate, the piston rods of the movable templates drive the main oil cylinders to be fixed with the movable templates, the movable templates are fixedly provided with upper dies of the dies, the movable templates are fixedly provided with ejection oil cylinders, and the piston rods of the ejection oil cylinders extend into the upper dies; a guide cylinder is fixed on the top plate, guide rods are inserted in the guide cylinder, the lower ends of the guide rods are fixed with the movable mould plate, and the upper ends of the four guide rods are fixed with the guide rod connecting frame;
a locking rod is fixed on the movable mould plate, a plurality of locking rod clamping grooves are formed on the locking rod, a locking oil cylinder is fixed on the top plate, and a piston rod of the locking oil cylinder faces the locking rod clamping grooves;
the fixed template is fixed on the lower upright post, the fixed template is positioned below the movable template, and a lower die of the die is fixed on the fixed template; an upper upright post is fixed on the fixed template, and a top plate is fixed at the upper end of the upper upright post;
the lower part of the lower upright post is fixed on the base, an electric worm wheel seat is fixed on the base, a worm wheel in the worm wheel seat is meshed with a screw rod, the screw rod is connected with a nut in a threaded manner, the nut is fixed on a lifting plate, the lifting plate is inserted and sleeved on the upright post, a guide rail is fixed on the lifting plate, a travelling pulley is arranged on the lower part of the heat preservation furnace, the travelling pulley is pressed on the guide rail, and the displacement sensor faces to the guide rod;
the furnace changing trolley has the structure that: the device comprises a vehicle body, a first longitudinal furnace changing rail and a second furnace changing rail, wherein a heat preservation furnace limiting lock is arranged in the middle of the right end of the first longitudinal furnace changing rail and the middle of the right end of the second furnace changing rail;
the first longitudinal furnace changing track is provided with a heat preservation furnace cover lifting device, and the structure of the heat preservation furnace cover lifting device is as follows: the lifting motor and the guide cylinder are fixed on the vehicle body, the rotating shaft of the lifting motor and the slide block nut are inserted in the guide cylinder, the rotating shaft of the lifting motor is in threaded connection with the slide block nut, lifting rods are fixed on the slide block nut, the upper ends of the lifting rods are fixed with heat preservation furnace covers, the two lifting rods are arranged on two sides of the first longitudinal furnace changing track, and a lifting motor is arranged below each lifting rod;
the upper end of the vehicle body is fixed with an upper end position laser scanner, the lower end of the vehicle body is fixed with a lower end position laser scanner, the speed reducing motor drives the longitudinal travelling wheel to rotate, and the longitudinal travelling wheel is pressed on the longitudinal trolley travelling rail;
the vehicle body is provided with a position chain wheel, a position chain is fixed on the longitudinal trolley travelling rail, the position chain wheel is meshed with the position chain, and a rotating shaft of the position chain wheel is arranged together with the closed-loop encoder;
the heat preservation furnace is provided with a pulley which is pressed on the guide rail, a push-pull speed reducing motor is fixed on the lifting plate, a push-pull screw rod is fixed on a rotating shaft of the push-pull speed reducing motor, the heat preservation furnace is fixed with a heat preservation furnace nut, and the push-pull screw rod is in threaded connection with the heat preservation furnace nut; the lifting plate is fixedly provided with a locking bracket, the locking cylinder is fixed on the locking bracket, the piston rod of the locking cylinder is fixedly provided with a locking tenon block, and the locking tenon block is inserted into a locking groove on the heat preservation furnace.
The furnace number scanner scans the furnace number of the heat preservation furnace, and the control cabinet controls the driving motor of the furnace changing trolley to work according to the furnace number scanned by the furnace number scanner.
The closed-loop encoder detects the accurate position of the furnace changing trolley on the trolley travelling track, signals of the closed-loop encoder are transmitted to the control cabinet, and the control cabinet controls the driving motor of the furnace changing trolley to work according to the signals of the closed-loop encoder.
The invention has the beneficial effects that:
1. the lifting device has the advantages of lighter structure, more convenient installation and disassembly and stable lifting operation.
2. The screw rod is driven by the worm wheel to rotate, and the lifting plate is driven by the screw rod to ascend and descend, so that the stable lifting of the heat preservation furnace is realized.
3. The screw rod and the nut on the worm wheel seat are easy to be installed together and easy to be disassembled.
4. The displacement sensor detects the position signal of the movable template on the guide rod, so that the control cabinet can conveniently and accurately control the position of the movable template.
5. The automatic low-pressure casting machine can reduce the labor intensity of workers and realize automatic low-pressure casting production.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the low pressure casting machine;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a schematic perspective view of a low pressure casting machine;
FIG. 5 is a schematic perspective view of a furnace changing trolley;
FIG. 6 is a schematic structural view of a holding furnace limit lock portion of the furnace changing trolley;
FIG. 7 is a schematic structural view of a part of a lifting device of a heat preservation furnace cover of the furnace changing trolley;
FIG. 8 is a schematic structural view of a closed loop encoder portion of the furnace changing trolley;
FIG. 9 is a schematic view of the left machine of the low pressure casting machine and the holding furnace section;
fig. 10 is a schematic view of the structure of the locking cylinder part of fig. 9.
The specific embodiment is as follows:
examples: as shown in fig. 1 to 10, the low-pressure casting production system for high-performance aluminum alloy castings comprises a low-pressure casting machine 7, a furnace changing trolley 2, a heat preservation furnace 3 and a furnace changing station 4, wherein the furnace changing trolley 2 walks along a trolley travelling rail 1, at least two low-pressure casting machines 7 are arranged at equal intervals on one side of the trolley travelling rail 1, a truss 6 is fixed on the ground on one side of the trolley travelling rail 1, and a heat preservation furnace lifting crane 5 moves along the truss 6; at least two heat preservation furnaces 3 are fixed on the ground below the truss 6, and a furnace changing station 4 is fixed on the ground at the left side of the heat preservation furnaces 3;
the structure of the low-pressure casting machine 7 is: the two movable mould plate driving main oil cylinders 74 are fixed on the top plate 71, the piston rods of the movable mould plate driving main oil cylinders 74 are fixed with the movable mould plate 72, an upper mould of the mould is fixed on the movable mould plate 72, an ejection oil cylinder 75 is fixed on the movable mould plate 72, and the piston rods of the ejection oil cylinders 75 extend into the upper mould; a guide cylinder 76 is fixed on the top plate 71, guide rods 77 are inserted in the guide cylinder 76, the lower ends of the guide rods 77 are fixed with the movable mould plate 72, and the upper ends of the four guide rods 77 are fixed with a guide rod connecting frame 717;
a locking rod 78 is fixed on the movable mould plate 72, a plurality of locking rod clamping grooves 781 are formed on the locking rod 78, a locking oil cylinder 716 is fixed on the top plate 71, and a piston rod of the locking oil cylinder 716 faces the locking rod clamping grooves 781;
the fixed die plate 79 is fixed on the lower upright post 701, the fixed die plate 79 is positioned below the movable die plate 72, and a lower die of a die is fixed on the fixed die plate 79; an upper upright post 73 is fixed on the fixed template 79, and a top plate 71 is fixed at the upper end of the upper upright post 73;
the lower part of the lower upright post 701 is fixed on the base 710, an electric worm wheel seat 711 is fixed on the base 710, a worm wheel in the worm wheel seat 711 is meshed with a screw rod 712, the screw rod 712 is in threaded connection with a nut 713, the nut 713 is fixed on a lifting plate 714, the lifting plate 714 is sleeved on the lower upright post 701, a guide rail 715 is fixed on the lifting plate 714, a traveling pulley 31 is arranged at the lower part of the heat preservation furnace 3, the traveling pulley 31 is pressed on the guide rail 715, and a displacement sensor 718 faces the guide rod 77;
the furnace changing trolley 2 has the structure that: the vehicle body 21 is fixedly provided with a first longitudinal furnace changing rail 22 and a second furnace changing rail 23, the middle parts of the right ends of the first longitudinal furnace changing rail 22 and the second furnace changing rail 23 are respectively provided with a heat preservation furnace limiting lock 24, the heat preservation furnace limiting locks 24 are structurally characterized in that piston rods of cylinders 241 are hinged with pulleys 242, the piston rods of the cylinders 241 are inserted into limiting lock holes 211 of the vehicle body 21, and the cylinders 241 are fixed on the vehicle body 21;
the first longitudinal furnace changing track 22 is provided with a heat preservation furnace cover lifting device 25, and the structure of the heat preservation furnace cover lifting device 25 is as follows: the lifting motor 251 and the guide cylinder 252 are fixed on the vehicle body 21, a rotating shaft of the lifting motor 251 and the sliding block nut 253 are inserted into the guide cylinder 252, the rotating shaft of the lifting motor 251 is in threaded connection with the sliding block nut 253, lifting rods 254 are fixed on the sliding block nut 253, a heat-preserving furnace cover 255 is fixed at the upper ends of the lifting rods 254, two lifting rods 254 are arranged on two sides of the first longitudinal furnace changing track 22, and a lifting motor 251 is arranged below each lifting rod 254;
an upper end position laser scanner 26 is fixed at the upper end of the vehicle body 21, a lower end position laser scanner 27 is fixed at the lower end of the vehicle body 21, a speed reducing motor 28 drives a longitudinal travelling wheel 29 to rotate, and the longitudinal travelling wheel 29 is pressed on the longitudinal trolley travelling rail 1;
the vehicle body 21 is provided with a position chain wheel 2a, a position chain 2b is fixed on the longitudinal trolley travelling rail 1, the position chain wheel 2a is meshed with the position chain 2b, and the rotating shaft of the position chain wheel 2a is arranged together with a closed-loop encoder 2 c;
the heat preservation furnace 3 is provided with a pulley 31, the pulley 31 is pressed on a guide rail 715, a push-pull speed reduction motor 35 is fixed on a lifting plate 714, a push-pull screw rod 36 is fixed on a rotating shaft of the push-pull speed reduction motor 35, the heat preservation furnace 3 is fixed with a heat preservation furnace nut 32, and the push-pull screw rod 36 is in threaded connection with the heat preservation furnace nut 32; the lifting plate 714 is fixed with a locking bracket 37, the locking cylinder 38 is fixed on the locking bracket 37, the piston rod of the locking cylinder 38 is fixed with a locking tenon block 39, and the locking tenon block 39 is inserted into the locking groove 33 on the holding furnace 3.
The furnace number scanner 27 scans the furnace number of the heat preservation furnace 3, and the control cabinet controls the driving motor of the furnace changing trolley 2 to work according to the furnace number scanned by the furnace number scanner 27.
The closed-loop encoder 2c detects the accurate position of the furnace changing trolley 2 on the trolley travelling rail 1, signals of the closed-loop encoder 2c are transmitted to the control cabinet, and the control cabinet controls the driving motor of the furnace changing trolley 2 to work according to the signals of the closed-loop encoder 2 c.
Working principle: the heat preservation stove 3 is hung to the stove changing station 4 by the heat preservation stove lifting machine 5, the stove changing station 4 adopts the existing stove changing station, when the stove changing trolley 2 faces the stove changing station 4, the heat preservation stove 3 is conveyed to the first longitudinal stove changing track 22 of the stove changing trolley 2 by the stove changing station 4, and the heat preservation stove cover 255 of the heat preservation stove cover lifting device 25 covers the heat preservation stove 3. The furnace changing trolley 2 then runs to the low-pressure casting machine 7 along the trolley running track 1, the push-pull screw rod 36 is in threaded connection with the heat preservation furnace nut 32 on the heat preservation furnace 3, the push-pull screw rod 36 pulls the heat preservation furnace 3 onto the lifting plate 714, and the heat preservation furnace 3 and the lifting plate 714 are locked together by the locking tenon block 39. The lifting plate 714 and the holding furnace 3 are lifted by the electric worm wheel seat 711 at the same time for casting.
After casting, the holding furnace 3 and the lifting plate 714 descend and reset, the holding furnace 3 is pushed to the second furnace changing track 23 of the furnace changing trolley 2 by the push-pull screw rod 36, and is returned to the furnace changing station 4 by the furnace changing trolley 2, and is lifted to the smelting position of the holding furnace 3 by the holding furnace lifting machine 5.
The upper end position laser scanner 26 and the lower end position laser scanner 27 determine the position of the furnace changing trolley 2 on the trolley travelling rail 1, the closed-loop encoder 2c is used for determining the accurate position of the furnace changing trolley 2 on the trolley travelling rail 1, the signal of the closed-loop encoder 2c is transmitted to the control cabinet, and the control cabinet finely adjusts the position of the furnace changing trolley 2 according to the signal of the closed-loop encoder 2 c.
The furnace number scanner 27 scans the furnace number of the heat preservation furnace 3, and the control cabinet controls the furnace changing trolley 2 to run to the specific low-pressure casting machine 7 according to the furnace number scanned by the furnace number scanner 27.
Claims (3)
1. High performance aluminum alloy foundry goods low pressure casting production system, including low pressure casting machine (7), change stove dolly (2), holding furnace (3) and change stove station (4), change stove dolly (2) and walk along dolly walking track (1), its characterized in that: at least two low-pressure casting machines (7) are arranged at equal intervals on one side of the trolley travelling rail (1), a truss (6) is fixed on the ground on one side of the trolley travelling rail (1), and a holding furnace crane (5) moves along the truss (6); at least two heat preservation furnaces (3) are fixed on the ground below the truss (6), and a furnace changing station (4) is fixed on the ground at the left side of the heat preservation furnaces (3);
the structure of the low-pressure casting machine (7) is as follows: the two movable mould plate driving main oil cylinders (74) are fixed on the top plate (71), piston rods of the movable mould plate driving main oil cylinders (74) are fixed with the movable mould plates (72), an upper mould of the mould is fixed on the movable mould plates (72), an ejection oil cylinder (75) is fixed on the movable mould plates (72), and piston rods of the ejection oil cylinders (75) extend into the upper mould; a guide cylinder (76) is fixed on the top plate (71), guide rods (77) are inserted in the guide cylinder (76), the lower ends of the guide rods (77) are fixed with the movable mould plate (72), and the upper ends of the four guide rods (77) are fixed with a guide rod connecting frame (717);
a locking rod (78) is fixed on the movable mould plate (72), a plurality of locking rod clamping grooves (781) are formed on the locking rod (78), a locking oil cylinder (716) is fixed on the top plate (71), and a piston rod of the locking oil cylinder (716) faces the locking rod clamping grooves (781);
the fixed template (79) is fixed on the lower upright post (701), the fixed template (79) is positioned below the movable template (72), and the fixed template (79) is fixed with a lower die of the die; an upper upright post (73) is fixed on the fixed template (79), and a top plate (71) is fixed at the upper end of the upper upright post (73);
the lower part of the lower upright post (701) is fixed on the base (710), an electric worm wheel seat (711) is fixed on the base (710), a worm wheel in the worm wheel seat (711) is meshed with a screw rod (712), the screw rod (712) is in threaded connection with a nut (713), the nut (713) is fixed on a lifting plate (714), the lifting plate (714) is inserted and sleeved on the lower upright post (701), a guide rail (715) is fixed on the lifting plate (714), a travelling pulley (31) is arranged at the lower part of the heat preservation furnace (3), the travelling pulley (31) is pressed on the guide rail (715), and a displacement sensor (718) faces the guide rod (77);
the furnace changing trolley (2) has the structure that: a first longitudinal furnace changing track (22) and a second furnace changing track (23) are fixed on the vehicle body (21), a heat preservation furnace limiting lock (24) is arranged in the middle of the right end of the first longitudinal furnace changing track (22) and the right end of the second furnace changing track (23), a pulley (242) is hinged on a piston rod of a cylinder (241) of the heat preservation furnace limiting lock (24), the piston rod of the cylinder (241) is inserted into a limiting lock hole (211) of the vehicle body (21), and the cylinder (241) is fixed on the vehicle body (21);
the first longitudinal furnace changing track (22) is provided with a heat preservation furnace cover lifting device (25), and the structure of the heat preservation furnace cover lifting device (25) is as follows: a lifting motor (251) and a guide cylinder (252) are fixed on the vehicle body (21), a rotating shaft of the lifting motor (251) and a sliding block nut (253) are sleeved in the guide cylinder (252), the rotating shaft of the lifting motor (251) is in threaded connection with the sliding block nut (253), a lifting rod (254) is fixed on the sliding block nut (253), a heat preservation furnace cover (255) is fixed at the upper end of the lifting rod (254), two lifting rods (254) are arranged on two sides of a first longitudinal furnace changing rail (22), and a lifting motor (251) is arranged below each lifting rod (254);
an upper end position laser scanner (26) is fixed at the upper end of the vehicle body (21), a lower end position laser scanner (27) is fixed at the lower end of the vehicle body (21), a gear motor (28) drives a longitudinal travelling wheel (29) to rotate, and the longitudinal travelling wheel (29) is pressed on a longitudinal trolley travelling rail (1);
a position chain wheel (2 a) is arranged on the vehicle body (21), a position chain (2 b) is fixed on the longitudinal trolley travelling rail (1), the position chain wheel (2 a) is meshed with the position chain (2 b), and a rotating shaft of the position chain wheel (2 a) is arranged together with a closed-loop encoder (2 c);
a pulley (31) is arranged on the heat preservation furnace (3), the pulley (31) is pressed on a guide rail (715), a push-pull speed reducing motor (35) is fixed on a lifting plate (714), a push-pull lead screw (36) is fixed on a rotating shaft of the push-pull speed reducing motor (35), a heat preservation furnace nut (32) is fixed on the heat preservation furnace (3), and the push-pull lead screw (36) is in threaded connection with the heat preservation furnace nut (32); a locking bracket (37) is fixed on the lifting plate (714), a locking cylinder (38) is fixed on the locking bracket (37), a locking tenon block (39) is fixed on a piston rod of the locking cylinder (38), and the locking tenon block (39) is inserted into a locking groove (33) on the heat preservation furnace (3).
2. The high performance aluminum alloy casting low pressure casting production system of claim 1, wherein: the furnace number scanner (27) scans the furnace number of the heat preservation furnace (3), and the control cabinet controls the driving motor of the furnace changing trolley (2) to work according to the furnace number scanned by the furnace number scanner (27).
3. The high performance aluminum alloy casting low pressure casting production system of claim 1, wherein: the closed-loop encoder (2 c) detects the accurate position of the furnace changing trolley (2) on the trolley travelling rail (1), signals of the closed-loop encoder (2 c) are transmitted to the control cabinet, and the control cabinet controls the driving motor of the furnace changing trolley (2) to work according to the signals of the closed-loop encoder (2 c).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910226890.0A CN109759562B (en) | 2019-03-25 | 2019-03-25 | Low-pressure casting production system for high-performance aluminum alloy castings |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910226890.0A CN109759562B (en) | 2019-03-25 | 2019-03-25 | Low-pressure casting production system for high-performance aluminum alloy castings |
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| CN109759562A CN109759562A (en) | 2019-05-17 |
| CN109759562B true CN109759562B (en) | 2023-09-22 |
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| WO2018006857A1 (en) * | 2016-07-07 | 2018-01-11 | 上海华培动力科技股份有限公司 | Flat-top type low pressure casting machine |
| CN109249003A (en) * | 2018-11-19 | 2019-01-22 | 浙江万丰科技开发股份有限公司 | Aluminium alloy car rear axle low pressure casting and post-processing automatic production line |
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2019
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202963420U (en) * | 2012-12-05 | 2013-06-05 | 济南山大有色金属铸造有限公司 | Low pressure casting machine |
| WO2016110235A1 (en) * | 2015-01-05 | 2016-07-14 | 江苏苏美达车轮有限公司 | Automobile hub gravity-pressurizing casting apparatus, casting system and casting method |
| CN205904415U (en) * | 2016-07-07 | 2017-01-25 | 上海华培动力科技有限公司 | Flat top formula low pressure casting machine |
| WO2018006857A1 (en) * | 2016-07-07 | 2018-01-11 | 上海华培动力科技股份有限公司 | Flat-top type low pressure casting machine |
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